Laser induced periodic surface structuring for surface enhanced raman spectroscopy

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2020
Özkarslıgil, Zeynep Tuğçe
In this study, our aim is to fabricate and characterize efficient substrates of surface enhanced Raman spectroscopy (SERS) utilizing the field enhancement due to hot spots made by recently developed method of laser induced periodic surface structuring (LIPSS). LIPSS is a cost-effective technique for rapid processing of almost any materials compared to conventional lithography methods. Coating of a thin silver film on LIPSS applied substrate surface provides to observe the localized surface plasmon effect for SERS measurement with the use of Raman reporter molecules interacting with silver substrate at the plasmon frequency. In order to characterize the optical properties, diffuse and total reflectivity of the substrates will be measured. Among possible expected applications of such prepared substrates are photonic templates for thin film optoelectronic devices with strong field enhancement properties.

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Citation Formats
Z. T. Özkarslıgil, “Laser induced periodic surface structuring for surface enhanced raman spectroscopy,” Thesis (M.S.) -- Graduate School of Natural and Applied Sciences. Physics., Middle East Technical University, 2020.